If you are using a bottling wand with a spring loaded tip, just fill the bottle up to the top, when you remove the wand there will be ample headspace. If you are not using a bottling wand, leave the same inch that is called for with 12 oz bottles.

If you are using a bottling wand with a spring loaded tip, just fill the bottle up to the top, when you remove the wand there will be ample headspace. If you are not using a bottling wand, leave the same inch that is called for with 12 oz bottles.

I find the bottle-wand-to-top procedure to be inapplicable to liter bottles. There just isn't enough headspace up there to get good carbonation. WIth liters, I usually go about 20-30% of the way up the upper "bell" of the bottneck, which probably leaves a few inches to the top.